Open earphones

Abstract

The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer; and an ear hook including a first portion of the ear hook and a second portion of the ear hook. The first portion of the ear hook is hung between an auricle and a head of a user, and the second portion of the ear hook extends towards a side of the auricle away from the head and connects with the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal, the housing and the first portinon of the ear hook clamp the auricle of the user, and provide a clamping force in a range of 0.03 N to 1 N to the auricle of the user.

What is claimed is: 
     
         1 . An open earphone, comprising:
 a sound production component including a transducer and a housing accommodating the transducer; and   an ear hook including a first portion of the ear hook and a second portion of the ear hook, wherein the first portion of the ear hook is hung between an auricle and a head of a user, and the second portion of the ear hook extends towards a side of the auricle away from the head and connects with the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal;   wherein in a wearing state, a minimum distance between the sound production component and the first portion of the ear hook is not less than 2 mm, the housing is at least partially inserted into an inferior concha of the user, and the sound production component and the ear hook jointly clamp the ear from front and rear sides of an ear region corresponding to the inferior concha.   
     
     
         2 . The open earphone of  claim 1 , wherein the housing includes a clamping region, the ear hook includes a clamping point of the ear hook and a clamping fulcrum, the clamping fulcrum being located at a position of the ear hook with a minimum cross-sectional area. 
     
     
         3 . The open earphone of  claim 2 , wherein in the wearing state, the clamping region is disposed on a free end of the sound production component. 
     
     
         4 . The open earphone of  claim 3 , wherein in the wearing state, an orthographic projection of the ear hook on a reference plane perpendicular to a long-axis direction partially overlaps with an orthographic projection of the free end of the sound production component on the reference plane. 
     
     
         5 . The open earphone of  claim 2 , wherein in a non-wearing state, an angle between a first connection line from a center of the clamping region to the clamping fulcrum and a second connection line from the clamping point of the ear hook to the clamping fulcrum is in a range of 3° to 9°. 
     
     
         6 . The open earphone of  claim 2 , wherein
 a difference between an angle between connection lines in the wearing state and an angle between connection lines in a non-wearing state is in a range of 2° to 4°,   the angle between the connection lines in the wearing state refers to an angle between a first connection line from a center of the clamping region to the clamping fulcrum and a second connection line from the clamping point of the ear hook to the clamping fulcrum in the wearing state, and   the angle between the connection lines in the non-wearing state refers to an angle between a first connection line from a center of the clamping region to the clamping fulcrum and a second connection line from the clamping point of the ear hook to the clamping fulcrum in the non-wearing state.   
     
     
         7 . The open earphone of  claim 1 , wherein in a non-wearing state, the minimum distance between the sound production component and the first portion of the ear hook is not greater than 3 mm. 
     
     
         8 . The open earphone of  claim 1 , wherein the housing includes one or more sound outlets located on a side wall of the housing toward or close to an external auditory canal of the user. 
     
     
         9 . The open earphone of  claim 8 , wherein the housing includes one or more pressure relief holes located on another side wall of the housing, the one or more sound outlets are acoustically coupled with a front cavity of the open earphone, and the one or more pressure relief holes are acoustically coupled with a rear cavity of the open earphone. 
     
     
         10 . The open earphone of  claim 9 , wherein in the wearing state, the sound production component and an inner wall of the inferior concha form a quasi-cavity structure, and the one or more sound outlets are located in the quasi-cavity structure, and the one or more pressure relief holes are located outside the quasi-cavity structure. 
     
     
         11 . The open earphone of  claim 1 , wherein in the wearing state, d viewed along a coronal axis of the user, a connection end of the sound production component is closer to a top of a head of the user than a free end of the sound production component. 
     
     
         12 . The open earphone of  claim 11 , wherein
 the sound production component has a thickness direction, and a long-axis direction and a short-axis direction that are perpendicular to the thickness direction and orthogonal to each other, the long-axis direction being a direction having a largest extension dimension in a two-dimensional projection plane of the sound production component, and   in the wearing state, an angle between the long-axis direction and a sagittal axis of the user is in a range of 15° to 60°.   
     
     
         13 . The open earphone of  claim 2 , wherein a clamping coefficient of the ear hook based on the clamping fulcrum is in a range of 10 N/m to 30 N/m. 
     
     
         14 . The open earphone of  claim 2 , wherein in the wearing state, a distance between a center of the clamping region and the clamping fulcrum is in a range of 20 mm to 40 mm. 
     
     
         15 . The open earphone of  claim 2 , wherein in the wearing state, a distance between the clamping point of the ear hook and the clamping fulcrum is in a range of 25 mm to 45 mm. 
     
     
         16 . The open earphone of  claim 2 , wherein in the wearing state, an angle between a first connection line from a center of the clamping region to the clamping fulcrum and a second connection line from a clamping point of the ear hook to the clamping fulcrum is in a range of 6° to 12°. 
     
     
         17 . The open earphone of  claim 2 , wherein at least one of the clamping region or an inner side of the clamping region is provided with a flexible material, and a Shore hardness of the flexible material is in a range of 0 HA to 40 HA. 
     
     
         18 . The open earphone of  claim 1 , wherein the ear hook is composed of a metal wire and a wrapping layer. 
     
     
         19 . The open earphone of  claim 18 , wherein an elastic modulus of the metal wire is in a range of 20 GPa to 50 GPa. 
     
     
         20 . The open earphone of  claim 18 , wherein a diameter of the metal wire is in a range of 0.5 mm to 1 mm.